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公开(公告)号：US11848654B2
公开(公告)日：2023-12-19
申请号：US16893137
申请日：2020-06-04
Applicant: Wilson Electronics, LLC
Inventor： Christopher Ken Ashworth , Patrick Lee Cook , Dale Robert Anderson
CPC classification number: H03G3/3042 , H03F3/245 , H04B7/15535 , H04B7/15578 , H04L5/1438 , H04W16/26 , H03F2200/451 , H03G2201/103 , H03G2201/307
Abstract: A technology is described for a repeater. A repeater can comprise a first port; a second port; a first-direction amplification and filtering path coupled between the first port and the second port; a multiplexer coupled between: the first-direction amplification and filtering path; and the second port; and a power amplifier (PA) coupled between the first port and the multiplexer. The repeater can further comprise an adjustable matching network coupled between the PA and the multiplexer, wherein the adjustable matching network is actively adjusted to match an impedance of an output of the PA at a selected channel over a frequency range for a first-direction signal with an impedance of an input of the multiplexer over the selected channel over the frequency range for a first-direction signal.
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公开(公告)号：US20230344392A1
公开(公告)日：2023-10-26
申请号：US17726653
申请日：2022-04-22
Applicant: Qorvo US, Inc.
Inventor： Baker Scott , Padmmasini Desikan , George Maxim , Mihai Murgulescu
CPC classification number: H03F3/19 , H03F1/565 , H03G3/3036 , H03F2200/294 , H03F2200/451 , H03F2200/387 , H03G2201/103 , H03G2201/307
Abstract: Disclosed is a low noise amplifier system. Included is a main amplifier having a main input coupled to a RF input and a main output connected to an RF output and an impedance amplifier having an impedance input coupled to the RF input and an impedance output coupled to the RF output, wherein the impedance amplifier is configured to provide input impedance matching to the main amplifier. The impedance amplifier also provides a first noise path that passes through the impedance amplifier such that the noise generated by the impedance amplifier is substantially out of phase with the noise that passes through a second noise path that passes through the main amplifier. A neutralization amplifier is configured to reduce parasitic capacitive loading within the first noise path.
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公开(公告)号：US11791785B2
公开(公告)日：2023-10-17
申请号：US17128537
申请日：2020-12-21
Applicant: IMEC vzw
Inventor： Khaled Khalaf , Steven Brebels
CPC classification number: H03F3/45183 , H03G3/3036 , H03F2200/451 , H03G2201/103 , H03G2201/307
Abstract: A sign switching circuitry is disclosed. In one aspect, the sign switching circuitry includes a first and second differential common-source amplifier having common differential input nodes and common differential output nodes configured such that a differential input signal applied at the common differential input nodes is amplified to a differential output signal at the common differential output nodes with a fixed gain by the first amplifier and by the fixed gain with opposite sign by the second amplifier. The sign switching circuitry also includes a switching circuitry configured to activate the first common-source amplifier and deactivate the second common-source amplifier to amplify the differential input signal by the fixed gain, and to activate the second common-source amplifier and deactivate the first common-source amplifier to amplify the differential input signal by the fixed gain with opposite sign.
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公开(公告)号：US20230327651A1
公开(公告)日：2023-10-12
申请号：US18203810
申请日：2023-05-31
Applicant: Reach Power, Inc.
Inventor： Asmita Dani , Christopher Joseph Davlantes
CPC classification number: H03K3/012 , H03F3/19 , H02M7/217 , H03G3/3036 , H03G2201/307 , H03F2200/451 , H03G2201/103
Abstract: A bidirectional RF circuit, preferably including a plurality of terminals, a switch, a transistor, a coupler, and a feedback network. The circuit can optionally include a drain matching network, an input matching network, and/or one or more tuning inputs. In some variations, the circuit can optionally include one or more impedance networks, such as an impedance network used in place of the feedback network; in some such variations, the circuit may not include a coupler, switch, and/or input matching network. A method for circuit operation, preferably including operating in an amplifier mode, operating in a rectifier mode, and/or transitioning between operation modes.
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公开(公告)号：US11699978B2
公开(公告)日：2023-07-11
申请号：US17228138
申请日：2021-04-12
Applicant: Qorvo US, Inc.
Inventor： Baker Scott , George Maxim , Dirk Robert Walter Leipold
CPC classification number: H03F1/0288 , H03F1/32 , H03F1/56 , H03F3/19 , H03G3/3036 , H03F2200/102 , H03F2200/222 , H03F2200/451 , H03G2201/307
Abstract: Doherty radio frequency (RF) amplifier circuitry includes an input node, an output node, a main amplifier path, and a peaking amplifier path. The main amplifier path is coupled between the input node and the output node and includes a main amplifier. The peaking amplifier path is coupled in parallel with the main amplifier path between the input node and the output node, and includes a peaking amplifier and a peaking variable gain preamplifier between the input node and the peaking amplifier. The peaking variable gain preamplifier is configured to adjust a current provided to the peaking amplifier.
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Patent Agency Ranking
公开(公告)号：US20230197410A1
公开(公告)日：2023-06-22
申请号：US18171829
申请日：2023-02-21
Applicant: Analogic Corporation
Inventor： Ahmed A. Hussein
CPC classification number: H01J37/32146 , H03F3/245 , H03G3/3042 , H03M1/66 , H03G2201/307 , H03F2200/451 , H03G2201/103
Abstract: One or more example relate, generally, to generating radio frequency (RF) signals. An apparatus may include a signal generator, an amplification stage, and a feedback control loop. The signal generator may generate a pulsed radio frequency (RF) signal at least partially responsive to a digital pulsed waveform defined by one or more commands. The amplification stage may amplify the pulsed RF signal. The feedback control loop may be coupled to the amplification stage to regulate a power level of respective steps of the pulsed RF signal.
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137.发明公开公开(公告)号：US20230155560A1
公开(公告)日：2023-05-18
申请号：US17919784
申请日：2021-04-21
Applicant: ZTE CORPORATION
IPC: H03G3/30
CPC classification number: H03G3/3036 , H03G2201/103 , H03G2201/307
Abstract: Provided are automatic level control (ALC) circuit, signal source, method for controlling signal source output power, and storage medium. The ALC circuit includes: at least two stages of ALC loops, each ALC loop including an amplifier, a coupler, a power detector, and an attenuation control module connected sequentially. An output end of an adjustable attenuator is connected to an input node of first stage of ALC loop; an output node of each stage of ALC loop, other than last stage of ALC loop, is connected to a normally on end of a two-way single-on switch, a first gating end of the two-way single-on switch is connected to an input node of a next stage of ALC loop, and the output node of the last stage of ALC loop and a second gating end of each two-way single-on switch are connected to an output end of the ALC circuit.
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公开(公告)号：US20180331672A1
公开(公告)日：2018-11-15
申请号：US15978894
申请日：2018-05-14
Applicant: STMicroelectronics SA
Inventor： Renald Boulestin
CPC classification number: H03H11/245 , H03F3/19 , H03F2200/451 , H03G1/0088 , H03G3/001 , H03G3/008 , H03G3/3036 , H03G2201/307 , H03H7/24 , H04B1/40
Abstract: An embodiment attenuator includes a plurality of circuits coupled in series. A respective circuit includes a first capacitor connected between an input node of the respective circuit and an output node of the respective circuit, and a second capacitor connected between the output node of the respective circuit and a reference node. The output node of the respective circuit, other than a last circuit of the plurality of circuits, is connected to the input node of a successive circuit. The attenuator further includes a plurality of selectors, in which the respective circuit is associated with a respective selector that is coupled between the output node of the respective circuit and an output node of the attenuator.
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公开(公告)号：US10057681B2
公开(公告)日：2018-08-21
申请号：US15225088
申请日：2016-08-01
Applicant: BOSE CORPORATION
Inventor： Jeffery R. Vautin , Michael S. Dublin
CPC classification number: H04R3/04 , H03G3/3005 , H03G3/3026 , H03G3/32 , H03G5/165 , H03G2201/307 , H04R2499/13 , H04S1/002 , H04S2400/13
Abstract: An entertainment audio processing system includes a music limiter configured to receive an audio signal, volume control information for music, and volume control information for announcement. The music limiter is further configured to calculate a gain parameter based on a music-to-announcement ratio. In another aspect, an entertainment audio processing system includes a mixer configured to substantially match a left audio signal channel and a right audio signal channel. The entertainment audio processing system further includes an equalizer configured to introduce magnitude and phase changes between the left audio signal channel and the right audio signal channel.
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公开(公告)号：US08244193B2
公开(公告)日：2012-08-14
申请号：US12348450
申请日：2009-01-05
Applicant: Meng-An Pan
Inventor： Meng-An Pan
CPC classification number: H04B1/0003 , H03F1/0261 , H03F3/45188 , H03G3/3042 , H03G2201/103 , H03G2201/202 , H03G2201/307 , H03G2201/40 , H04B1/0475
Abstract: A transmitter includes a dual mode modulator and an amplifier coupled to the dual mode modulator. The dual mode modulator implements a linear modulation scheme during a first mode of the modulator to produce a variable envelope modulated signal. The dual mode modulator implements a non-linear modulation scheme during a second mode of the modulator to produce a constant envelope modulated signal. The amplifier is biased as a linear amplifier during the first mode of the modulator and is biased as a non-linear amplifier during the second mode of the modulator. A feed-forward connection between the dual mode modulator and the amplifier is used to indicate a change in modulation mode and to adjust the bias of the amplifier. A power of the constant envelope modulated signal is increased such that an operating point of the amplifier remains substantially constant during the first and second modes of the modulator.
Abstract translation: 发射机包括耦合到双模调制器的双模调制器和放大器。 双模式调制器在调制器的第一模式期间实现线性调制方案，以产生可变包络调制信号。 双模式调制器在调制器的第二模式期间实现非线性调制方案，以产生恒定的包络调制信号。 放大器在调制器的第一模式期间被偏置为线性放大器，并且在调制器的第二模式期间被偏置为非线性放大器。 双模式调制器和放大器之间的前馈连接用于指示调制模式的变化并调整放大器的偏置。 恒定包络调制信号的功率增加，使得放大器的工作点在调制器的第一和第二模式期间保持基本恒定。
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